ABAP Select data from SAP table FBICRC002_ASSIGN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FBICRC002_ASSIGN table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to FBICRC002_ASSIGN. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the FBICRC002_ASSIGN table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_FBICRC002_ASSIGN TYPE STANDARD TABLE OF FBICRC002_ASSIGN,
      WA_FBICRC002_ASSIGN TYPE FBICRC002_ASSIGN,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <FBICRC002_ASSIGN> TYPE FBICRC002_ASSIGN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FBICRC002_ASSIGN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FBICRC002_ASSIGN
  INTO TABLE IT_FBICRC002_ASSIGN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FBICRC002_ASSIGN
*  INTO TABLE @DATA(IT_FBICRC002_ASSIGN2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_FBICRC002_ASSIGN INDEX 1 INTO DATA(WA_FBICRC002_ASSIGN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FBICRC002_ASSIGN ASSIGNING <FBICRC002_ASSIGN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FBICRC002_ASSIGN>-RCOMP = 1.
<FBICRC002_ASSIGN>-RASSC = 1.
<FBICRC002_ASSIGN>-RYEAR = 1.
<FBICRC002_ASSIGN>-PDATE = 1.
<FBICRC002_ASSIGN>-ACCT = 1.

ENDLOOP.

LOOP AT IT_FBICRC002_ASSIGN INTO WA_FBICRC002_ASSIGN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FBICRC002_ASSIGN-POSTK, sy-vline,
  WA_FBICRC002_ASSIGN-RVERS, sy-vline,
  WA_FBICRC002_ASSIGN-POPER, sy-vline,
  WA_FBICRC002_ASSIGN-TEST, sy-vline,
  WA_FBICRC002_ASSIGN-RPROC, sy-vline,
  WA_FBICRC002_ASSIGN-RULE_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FBICRC002_ASSIGN you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_FBICRC002_ASSIGN TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_FBICRC002_ASSIGN INTO WA_FBICRC002_ASSIGN.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field RCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC002_ASSIGN-RCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC002_ASSIGN-RCOMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RASSC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC002_ASSIGN-RASSC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC002_ASSIGN-RASSC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC002_ASSIGN-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC002_ASSIGN-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC002_ASSIGN-ACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC002_ASSIGN-ACCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC002_ASSIGN-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC002_ASSIGN-RVERS.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FBICRC002_ASSIGN_STR, 
RCOMP TYPE STRING,
RASSC TYPE STRING,
RYEAR TYPE STRING,
PDATE TYPE STRING,
ACCT TYPE STRING,
POSTK TYPE STRING,
RVERS TYPE STRING,
POPER TYPE STRING,
TEST TYPE STRING,
RPROC TYPE STRING,
RULE_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FBICRC002_ASSIGN_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_FBICRC002_ASSIGN_STR-RCOMP sy-vline 
WA_FBICRC002_ASSIGN_STR-RASSC sy-vline 
WA_FBICRC002_ASSIGN_STR-RYEAR sy-vline 
WA_FBICRC002_ASSIGN_STR-PDATE sy-vline 
WA_FBICRC002_ASSIGN_STR-ACCT sy-vline 
WA_FBICRC002_ASSIGN_STR-POSTK sy-vline 
WA_FBICRC002_ASSIGN_STR-RVERS sy-vline 
WA_FBICRC002_ASSIGN_STR-POPER sy-vline 
WA_FBICRC002_ASSIGN_STR-TEST sy-vline 
WA_FBICRC002_ASSIGN_STR-RPROC sy-vline 
WA_FBICRC002_ASSIGN_STR-RULE_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.